So I have a 76 FJ40 with a 79 2f, with a rebuilt aisin carburetor powering 35" bfg's with 4.11's. Initially I didn't have the return fuel line hooked up, so I got that fixed and now that is working. And then proceded to change out the spark plugs to the stock plugs and gapped them .055 because I have a h.e.i. distributor. But i'm still running into the same problem.
My in cab vaccum gauge is reading 6 - 7 psi at speeds 55 mph +. Woody was suggesting possibly bad timing but my rig accelerates with no hesitation. Any of you 2f gurus have any ideas on what could be the reason for such a crappy vacuum reading? At idle is sits perfect at 850 rpm at 21 psi on the vacuum gauge. Thanks.
Travis
My in cab vaccum gauge is reading 6 - 7 psi at speeds 55 mph +. Woody was suggesting possibly bad timing but my rig accelerates with no hesitation. Any of you 2f gurus have any ideas on what could be the reason for such a crappy vacuum reading? At idle is sits perfect at 850 rpm at 21 psi on the vacuum gauge. Thanks.
Travis